Furfuracic lotion has astringent and antipruritic effects and is mainly used for allergic skin diseases, such as acute urticaria or dermatitis eczema. A bright red rash with pronounced itching can be applied externally with Furfuracic lotion several times a day, which has significant antipruritic and anti-inflammatory and astringent effects. Acne is an infectious skin disease that may be caused by infection of hair follicles by Propionibacterium acnes. The treatment of acne is mainly topical application of anti-inflammatory creams, such as clindamycin or drugs that inhibit acne formation, such as adapalene and retinoids. Hearthstone lotion does not have the effect of killing pathogenic microorganisms, so hearthstone lotion cannot be used to treat acne.